Electro-optic polymer devices with semiconducting oligomer clads
View Patent ↗An electro-optic waveguide device comprising an electro-optic polymer core and at least one crosslinked polymer clad, wherein the crosslinked polymer clad is comprised of a first constitutional unit derived from a compound having the formula wherein, m=0-6; n=0-1; q=1-3; y=0-3; Ar 1 is an aryl or heteroaryl group; and independently at each occurrence p=0-1; R is an alkyl, heteroalkyl, aryl, or heteroaryl group; Ar 2 is an aryl or heteroaryl group; and X is a crosslinkable group. The R group may be an alkyl or heteroalkyl group with at least 6 atoms in a straight chain. In some embodiments, the R group is an alkoxy capped oligoalkylene group. Other embodiments include a polymer comprising a first constitutional unit derived from a compound having the formula described above.
1. An electro-optic waveguide device comprising an electro-optic polymer core and at least one crosslinked polymer clad, wherein the crosslinked polymer clad is comprised of a first constitutional unit derived from a compound having the formula
wherein, m=0-6; n=0-1; q=1-3; y=0-3; Ar 1 is an aryl or heteroaryl group; and independently at each occurrence p=0-1; R is an alkyl, heteroalkyl, aryl, or heteroaryl group; Ar 2 is an aryl or heteroaryl group; and X is a crosslinkable group.
2. The electro-optic device of claim 1 , wherein each R is an alkyl or heteroalkyl group with at least 6 atoms in a straight chain.
3. The electro-optic device of claim 2 , wherein at least one R is an alkoxy capped oligoalkylene group.
4. The electro-optic device of claim 3 , wherein the alkoxy capped oligoalkylene group is a 2-(2-methoxyethoxy) ethyl group; a 2-[2-(2-methoxyethoxy)ethoxy]ethyl group; or a 2-(2-[2-(2-methoxyethoxy)ethoxy]ethoxy) ethyl group.
5. The electro-optic device of claim 1 , wherein the crosslinkable group is an acid labile group, a radical labile group, or a thermally labile group.
6. The electro-optic device of claim 5 , wherein the crosslinkable group is an epoxide or an acrylate.
7. The electro-optic device of claim 1 , wherein n=0; p=0; q=1-3; y=1-3; and m=0-6.
8. The electro-optic device of claim 7 , wherein the crosslinkable group is an acrylate and R is an alkoxy capped oligoalkylene group.
9. The electro-optic device of claim 1 , wherein m=0-6, n=0-1; q =1-3; y=1-3; and p=1.
10. The electro-optic device of claim 9 , wherein Ar 1 is a phenyl group; Ar 2 is a phenyl group; and R is an alkoxy capped oligoalkylene group.
11. The electro-optic device of claim 1 , wherein m=1-6; n=1; p=0-1; q=1-3; and y=1-3.
12. The electro-optic device of claim 11 , wherein Ar 2 is an aryl group, and R is an alkoxy capped oligoalkylene group.
13. The electro-optic device of claim 12 , wherein Ar 1 has the formula
14. The electro-optic device of claim 1 , wherein the crosslinked polymer clad further comprises a second constitutional unit comprising a halocatechol diacrylate, a haloresorcinol diacrylate, a halohydroquinone diacrylate, or an oligoalkylene diacrylate.
15. The electro-optic device of claim 14 , wherein the weight percent of the second constitutional unit is from 10-50% of the crosslinked polymer clad.